Photodynam facilitates so-called "photometric-dynamical" modeling. This model is quite simple and this is reflected in the code base. A N-body code provides coordinates and the photometric code produces light curves based on coordinates.
https://ui.adsabs.harvard.edu/abs/2011Sci...331..562C and https://ui.adsabs.harvard.edu/abs/2012MNRAS.420.1630P